To measure characteristic levels of energy output at the very beginning of life, the activity and crying patterns of 72 normal neonates were monitored for 1-3 days by an electronic activity monitor. (Author/MP)

Activity of 50 children whose motility had been monitored by an electronic activity monitor when they were neonates was again monitored by an ambulatory microcomputer when they were four to eight years old. Results are consistent with evidence from several longitudinal studies suggesting that individual activity characteristics tend to persist…

Presents a description of a neonatal monitoring system and the studies used in its validation. (SDH)

Thirty-one normal neonates were monitored for 24 hours on a newly developed movement monitor which provided measures of noncrying activity and counts of various movement amplitudes. (Author/SDH)

A neurobehavioral maturity assessment which used data from preterm infants was developed. Eight dimensions of neurobehavioral functioning were found to be stable, nonredundant, and developmentally valid. (PCB)

Determined whether individual neonate characteristics could be detected and reliably measured in preterm infants. Results showed that preterms were highly self-consistent in their reactions to stimuli from neurobehavioral assessments. Highly reliable individual differences among infants were also seen. Individual consistencies and differences in…